PHOENIX — Randy Winn celebrated his 35th birthday on Tuesday and he’d be satisfied with a belated gift today — a couple of hits off Arizona left-hander Doug Davis.

Winn, a switch hitter, is having the hardest time from his natural right side. He has a .128 average in 47 at-bats while batting right-handed, joining several teammates struggling against southpaws.

Fred Lewis is batting .182 vs. lefties, and is no longer guaranteed at-bats against them. Juan Uribe was expected to be a right-handed hammer. But lefties have held him to a .154 average.

“We’ve gotta get somebody to handle these lefties,” said Giants Manager Bruce Bochy, after Florida Marlins rookie Sean West took a no-hitter into the seventh inning Monday.

It’s one of several reasons the Giants decided to promote Kevin Frandsen, a right-handed hitter, instead of left-handed power hitter John Bowker when they placed Travis Ishikawa on the bereavement list Tuesday.

The Giants’ overall numbers against left-handers aren’t skewed when compared to the right side. And their 6-7 record against left-handed starters isn’t an eyesore, either.

Winn has tried opening his stance from the right side, but he said no adjustments can be as effective as consistent at-bats.

“If we could face six or seven lefty starters in a row, that would be great,” Winn said.

How about we start with the Mets’ Johan Santana?

“Sure,” Winn said. “It doesn’t matter who it is. You just want a chance to get comfortable from that side. It’s still early, but if there’s one thing I could ask for, I’d ask for that.”

That makes Winn a hard guy to shop for.

There was no video tribute to Randy Johnson Tuesday night, mostly because there was no Randy Johnson.

The Big Unit received permission to take a leave from the Giants so he could attend his daughter’s graduation from eighth grade. Johnson lives in nearby Paradise Valley, Ariz., and will rejoin the team today.

The Diamondbacks plan to celebrate Johnson’s 300th career victory with a video montage during today’s game.

Ishikawa will be eligible to rejoin the Giants when they begin a home series Friday against the A’s.

With lower home prices, more Californians could afford a home purchase in the fourth quarter of 2018 compared to the previous quarter, but the California Association of Realtors reports higher interest rates lowered affordability from the previous year for most counties.